21189701950

素因数分解:

$2^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{3235069}}^1$

素因数の和:3235212

約数の個数: 24

約数和(自身を含む): 39713719320

約数和(自身を除く): 18524017370

約数列:

[1, 2, 5, 10, 25, 50, 131, 262, 655, 1310, 3275, 6550, 3235069, 6470138, 16175345, 32350690, 80876725, 161753450, 423794039, 847588078, 2118970195, 4237940390, 10594850975, 21189701950]

約数ペア:

[(1, 21189701950), (2, 10594850975), (5, 4237940390), (10, 2118970195), (25, 847588078), (50, 423794039), (131, 161753450), (262, 80876725), (655, 32350690), (1310, 16175345), (3275, 6470138), (6550, 3235069)]